ERRATA ET ADDENDA. 349 



On page 31, Pilgram's authority is for March 1, 1728, and not March 2. 



On page 34, Pilgram's name should be attached to the observation of September 15, 1729, instead of 

 September 20. 



On page 35, the aurora for October 23, 1730, recorded by Mairan, is repeated out of its place ; also, against 

 Plymouth, for October 6 read October 8. 



On page 36 against October 2, 1731, and elsewhere against January 9 and August 22, 1737, April 9, 

 June 2, September 23, 1739, also against April G, 1741, for Kahn read Kalm. 



On page 39, for September 2, 1733, read October 2. Thompson's authority belongs to February 22, 1734, 

 and not to February 23. Strike out November 27 and 29, 1733. 



On page 49, for June 13, 20, and 27, 1744, read August 13, 20, and 27. It is doubtful whether the aurora 

 at Tubingen of June 13, 1745, may not belong to June 13, 1744, and that of January 9, 1746, to January 

 9, 1745. 



On page 52, the aurora of January 23, 1750, is probably given in old style. 



On page 59, add to the aurora of October 28, 1768, the places where it was seen, viz., Rome and Vienna, 

 and the authority, viz., Cotte. 



On page 61, in the aurora ascribed to Franeker, for December 4 read December 5. 



On page 66, last line, for February 19 read April 9. 



On page 67, the aurora given by Cotte for December 6, 1777, is quoted as on December 5 in the Connaiss. 

 de Terns for 1781, p. 390. 



On page 71, the aurora of November 27, 1779, observed at Gurzelen, should be changed to December 6. In 

 aurora of February 29, 1780, transfer the reference of note 5 from Geneva to Berne. Strike out the aurora 

 ofNovember 16, 1780, at St. Petersburg. 



On pages 72, &c, many of the auroras recorded for the years 1781 - 1792 are extracted from the volumes 

 entitled Ephem. Soc. Meteor. Palat. 



On page 72, against the aurora at Montmorenci, for April 15 ( 1781, read April 25. 



On page 78, against the aurora at Cambridge, by Williams, for October 5, 1785, read October 6. 



On page 79, against the aurora at Salem, for March 35, 1786, read March 25. On the last line of left 

 column, for 1 read March 1. 



On page 81, all the observations assigned to September 18, 1786, should be transferred to September 19. 

 The observation at Montmorenci, on May 30, is out of place. 



On page 87, the query against Sagan should be transferred from April 1, 1788, to April 26. The reference 

 against Cassini on March 28 is incorrectly printed. 



On page 94, left-hand note, for fur. read fiir. 



On page 95, the aurora of October 13, 1792, is duplicated at New Haven. 



On page 96, in note 8, add to Journ. de Physique the volumes, viz., Vol. XLIX. pp. 235 and 301, and 

 succeeding volumes. For the auroras of July 23 and September 3, 1799, refer also to Connaiss. de Terns, 

 1803, p. 511. 



On page 97, to the observations on October 22, 1804, add the place, viz., Sweden. 



On page 98, in note 6, for Aurora VPhenom., read Auroral Phenom. For the observations made at the 

 Paris Observatory in the years 1803-1805, see Connaiss. de Terns, 1806-1807, p. 498; 1808, p. 498; 

 and 1809, pp. 498, 499. 



On page 98, against Salem, for January 31, 1814, read February 28. 



